The Hamptons season has officially started. This means that by 2 p.m. every Friday, New Yorkers begin heading "out East"—to the land of Round Swamp Farm, vibrant hydrangeas, and $75 workout sessions. Leading the fashion scene is Mary-Kate Olsen.
This week, the Bridgehampton resident and co-founder of The Row was seen clutching a brown paper bag and an Amex black card on a grocery run. While Olsen, who’s built her career on her chic style, made the bodega bag look cool, it was her outfit that caught our eye: FreeCity sweatpants and flip-flops.
On Mary-Kate Olsen: FreeCity Sweatpants ($168); The Row sandals
On anyone else, this combination might seem like a relic from 2006. On Olsen, it was a master class in understated luxury combined with nostalgic normcore. She kept her usual loose silhouettes, pairing the sweats with an oversize tee. But the real detail? Those sweatpants weren’t just a random throwback; they were an intentional choice. FreeCity sweats are actually sold at The Row’s boutiques. In other words, these sweats are less of a “dated” item and more of a wardrobe staple that has the highest badge of honor—Olsen approval.
Then there were the flip-flops. Once confined to pool decks and pedicure chairs, the humble thong sandal has become summer’s most popular footwear trend. On Olsen, paired with loungewear and a nonchalant attitude, it created a look that whispered, "I summer in the Hamptons, but I couldn’t care less if you notice." Feeling inspired to replicate her stylish yet laid-back look this summer? Keep scrolling to shop the best FreeCity sweatpants and flip-flops.
My go-to black flip-flops. I wore them all over the Hamptons this past weekend.
Style with a white tee, black sandals, and a raffia tote bag.
I'm 90% certain this is the style Mary-Kate was wearing.
The pop of green against the dark pants is so fun.
Fashion people on Instagram live in these sandals.
These with a white button-down shirt would look unexpected but cute.
Chocolate-brown leather flip-flops will make any sweatpants look expensive.
This colorway is so pretty.
Senior fashion editor Eliza Huber owns these in white and always talks about how comfortable they are.
Love.
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